Resolved: Variable and input variable React

import {useState} from "react";
import './App.css';
function App() {
const [age, setAge] = useState(0);
const [inputValue, setInputValue] = useState("");

const increaseAge = () => {
setAge(age + 1);
};
const decreaseAge = () => {
    setAge(age - 1);
};
 const increaseAgeten = () => {
    setAge(age + 10);
 };
 const decreaseAgeten = () => {
    setAge(age - 10);
 };
const increaseAgehundred = () => {
    setAge(age + 100);
 };
 const decreaseAgehundred = () => {
    setAge(age - 100);
 };
const handleInputChange = (event) =>{setInputValue(event.target.value)}
return (
    <div className="App">
    
    <br></br>
    {age}
    <br></br>
    
    <button onClick={increaseAge}>+1</button>
    <button onClick={decreaseAge}>-1</button>
    <br></br>
    <button onClick={increaseAgeten}>+10</button>
    <button onClick={decreaseAgeten}>-10</button>
    <br></br>
    <button onClick={increaseAgehundred}>+100</button>
    <button onClick={decreaseAgehundred}>-100</button>
    <br></br>
    <input type="text" onChange = {handleInputChange}/>     
    </div>
  );
}


export default App;

const [inputValue, setInputValue] = useState("");

const increaseAge = () => {
   setAge(age + 1);
};

const increaseAge = () => {
   const nextAge = age + 1
   setAge(nextAge);
};